Print Magazine – Interlock Design is the official magazine of the Interlocking Concrete Pavement Institute (ICPI). Featuring the latest news, applications, case studies and information about the segmental concrete pavement industry, Interlock Design is the trusted source for over 27,000 design professionals, contractors and industry leaders.
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PICP Parking Lot Demonstrates an Attractive Solution for Stormwater Runoff
As the Monster Storm called Hurricane Sandy slams the Eastern U.S., permeable interlocking concrete pavement—called PICP—is working overtime to reduce runoff and flooding. Millions of square feet of PICP consisting of durable concrete paving units with permeable joints is receiving rainfall rather than sending runoff to overflowing storm sewers and streams. Located in hundreds of parking lots and some low-speed roads, PICP stores runoff under the concrete pavers and allows infiltration into the soil beneath. This reduces local flooding and property damage.
From North Carolina to New England, many cities have passed ordinances over the past decade requiring reduced stormwater runoff. To meet many of these ordinances, developers switched to permeable pavement often because it was less expensive than directing runoff from roofs and impermeable pavements directly into big detention ponds. The ordinances resulted in hundreds of PICP parking lots with some sidewalks and roads built using PICP.
An example is Richmond, Virginia that has begun converting alleys to PICP in the downtown and in selected neighborhoods that store and infiltrate runoff rather than allow it into the city’s combined sanitary and storm sewer system. Another example is Montgomery County, Maryland, that helps offset homeowner expense to install PICP in driveways throughout selected neighborhoods with storm sewers working at capacity. The County figured that it was less expensive to provide some financial incentive to homeowners to make their driveways permeable than to upsize the neighborhood’s storm pipes, a costly project that only sends more water to flood some other downstream neighborhood.
Homeowners should propose to their local municipalities to pass ordinances that include PICP to reduce stormwater runoff in parking lots and low speed roadways. ICPI has developed a short video that explain the benefits of PICP:
Interlock Design is the official magazine of the Interlocking Concrete Pavement Institute (ICPI). Featuring the latest news, applications, case studies and information about the segmental concrete pavement industry, Interlock Design is the trusted source for over 24,000 design professionals, contractors and industry leaders.
The Interlocking Concrete Pavement Institute (ICPI), founded in 1993, is the North American trade association representing the interlocking concrete paving industry.
ICPI is considered by peer associations around the world as the leader in development and dissemination of technical information for design professionals and contractors. Our leadership position is due to years of commitment and energy from more than 1,100 members. ICPI engages in a broad range of technical, marketing, educational, government relations and communications activities.
Membership consists of interlocking paver manufacturers, design professionals, paver installation contractors and suppliers of products and services related to the industry. ICPI offers a variety of services to its members through its vast library of technical publications, online design idea galleries, publications, paver installer certification programs and the industry’s only dedicated magazine, Interlock Design.